Memory alloy reset external fixation system and application method based on virtual reset

Abstract

The present disclosure provides a memory alloy reduction and external fixation system based on virtual reduction and its use method, including at least two mutually parallel first threaded nails for driving into the distal end of the fracture and at least two first threaded nails for driving into the proximal end of the fracture. A second threaded screw parallel to each other; the first threaded nail is fixed by the first clamp, the second screw is fixed by the second clamp, and the first clamp and the second clamp are connected by a softened memory alloy connecting rod constructed according to the virtual reset result; The present disclosure adopts memory alloy combined with the result of virtual reset to achieve a more ideal reset effect with as little trauma as possible, accurate reset and reduced pain of patients.

Description

technical field [0001] The present disclosure relates to the technical field of fracture reduction and fixation equipment, in particular to a memory alloy reduction and external fixation system based on virtual reduction and a method of use thereof. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Fracture reduction is an essential part of the fracture treatment process, and a good reduction method can reduce the pain of patients while achieving rapid and accurate reduction. [0004] The inventors of the present disclosure have discovered that open reduction and internal fixation and manual reduction and external fixation both have obvious disadvantages in clinical practice. At present, open reduction and strong internal fixation guided by the AO theory has become the mainstream of osteosynthesis, but with the continuous deepening of bas...

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Problems solved by technology

At present, open reduction and strong internal fixation guided by the AO theory has become the mainstream of osteosynthesis, but with the continuous deepening of basic research and technical development, the disadvantages of open reduction have gradually emerged, mainly reflected in the process of open reduction. The stripping of the tissue and the periosteum will inevitably destroy the blood supply, resulting in an increase in the necrotic area at the fracture end; the process of removing the hematoma will also interfere with the body's own repair ability and affect fracture healing; the original closed fracture will be transformed into a "closed fracture" through incision. "Open fracture" increases the chance of infection. What's more serious is that open reduction surgery is likely to cause tissue adhesion and cause limb dysfunction; while manual reduction mainly depends on the operator's hand and heart. Due to the covering of soft tissues such as skin and muscles, In the process of manipulative restoration, we can only rely on the operator's "touch and feel", and cannot observe the relative position of the fracture in real time, so that the corresponding manipulation cannot be adopted, so there are problems such as low reduction accuracy and poor success rate; during the fixation process , due to the defects of the splint structure, the movement of the muscle and bone tissue cannot be effectively restrained, resulting in the loss of the position of the reset bone block, and the failure of the splint fixation, etc., with great uncertainty

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